I feel like DR. McCoy on Star Trek when someone asks me a question like that...

"Jim, I'm a doctor, not an electronics engineer!"

I've never touched a single board to repair it for any reason in all of my 34 years of appliance repair. Some folks might be more comfortable with things like that, but that's not in my relam of expertise. Yet. Too many factors may have caused the chip failure, including power surge. This likely took out other components, like diodes which may be in the circuit to control power flow. Unless you are prepared to diagnose the whole board, replacing the chip alone is a gamble.